RT88H01 DC5V-12V VHF/UHF Radio Modem RS485 Lora GFSK Wireless Transceiver 22DBM 433M 868M Transmitter and Receiver Module
Features:
Long-distance wireless transmission (up to 1000 meters in open space, Bit rate 1.76~62.5Kb/s);
Working frequency range: 410~512MHz for 433 version, 854.5~931MHz for 868 version, up to 256 communication channels;
Maximum 156mW (22dBm) transmit power (10 levels of power can be set);
Built-in MCU, use serial port to communicate with external devices;
Send a maximum of 250 bytes at a time, and a maximum of 240 bytes in encrypted mode;
The module can support one-to-one, one-to-many transparent transmission communication through ID setting
The receiving module can be set to Repeater mode to extend the communication distance (solder the M0 solder spot on the module);
The module can set data AES encrypted transmission to enhance data confidentiality.
Specifications:
Working voltage: 5V-12V
Interface : RS485
Frequency: 433M Version(410~512MHz);868M
Transmit power: -9~+22dBm
Receiver sensitivity: -129dBm
Operating temperature: -25℃~+75℃
Transparent transmission mode baud rate :1200 2400,4800,9600(Default),19200,38400,57600,115200
Open ground Transmission distance : 1000M
Size(without antenna): 45x30x14mm
Weight(without antenna):12g
Recommend to buy more than 2pcs!!!
How to use (>=2pcs):
1 2PCS,Module 1 and Module 2 send data to each other.
2 3PCS,Module 1 sends data, module 2 acts as a repeater (multiple repeaters can be used), and module 3 receives data; delay sending and receiving distance.
3 >=3PCS,One as master device, the other as will be as slave device.
the way they work as well as wired RS485 bus. Master device transmit data, Slave devices all receive data.Any slave device transmit data, master device and the other slave devices can receive .When ever only allowed one device (master or slave) to transmit data.
Note:
1.Due to the light and screen difference, the item's color may be slightly different from the pictures.
2.Please allow 1mm-1cm differences due to manual measurement.
Package Included:
1x Module
1x Antenna